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Fencer Intel
medium 6.5

CVE-2019-16166 json

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

published 7y ago modified 4mo ago also EUVD-2019-6986

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

GNU cflow through 1.6 has a heap-based buffer over-read in the nexttoken function in parser.c.

Patch / fix

  • cflow Debian 14, Debian 13, Debian 12 1:1.6-6

debian advisories DEBIAN-CVE-2019-16166

  • cflow openSUSE Tumbleweed 1.7-1.1

opensuse advisories openSUSE-SU-2024:11709-1

Is CVE-2019-16166 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-16166 updated cvss 4.8

cflow: heap-based buffer over-read in the nexttoken function in parser.c

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.11% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.